package cn.sfrog.web.controller.common;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.IdUtil;
import cn.hutool.core.util.StrUtil;
import cn.sfrog.common.config.AppConfig;
import cn.sfrog.common.constant.Constants;
import cn.sfrog.common.core.domain.AjaxResult;
import cn.sfrog.common.obs.HwObsUtil;
import cn.sfrog.common.oss.OssProperties;
import cn.sfrog.common.oss.service.OssTemplate;
import cn.sfrog.common.utils.StringUtils;
import cn.sfrog.common.utils.file.FileUploadUtils;
import cn.sfrog.common.utils.file.FileUtils;
import cn.sfrog.framework.config.ServerConfig;
import cn.sfrog.project.biz.admin.enums.CityLevelEnum;
import cn.sfrog.system.domain.SysCity;
import cn.sfrog.system.service.ISysCityService;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 通用请求处理
 */
@RestController
public class CommonController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;


    @Autowired
    private OssProperties ossProperties;

    @Autowired
    private OssTemplate ossTemplate;
    @Autowired
    private ISysCityService sysCityService;

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("common/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 " , fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = AppConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败" , e);
        }
    }

    /**
     * 通用上传请求
     */
    @PostMapping("/common/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception {
        try {
            // 上传文件路径
            String filePath = AppConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("fileName" , fileName);
            ajax.put("url" , url);
            return ajax;
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 阿里云OSS
     * @param multipartFile
     * @return
     * @throws Exception
     */
    @PostMapping("/common/uploadFileOSS")
    public AjaxResult uploadFileOSS(MultipartFile multipartFile) throws Exception {
        String fileName = IdUtil.simpleUUID() + StrUtil.DOT + FileUtil.extName(multipartFile.getOriginalFilename());
        Map<String, String> resultMap = new HashMap<>(4);
        resultMap.put("bucketName", ossProperties.getBucketName());
        resultMap.put("fileName", fileName);
        resultMap.put("url", String.format("%s/%s/%s", ossProperties.getEndpoint(), ossProperties.getBucketName(), fileName));
        try {
            ossTemplate.putObject(ossProperties.getBucketName(), fileName, multipartFile.getInputStream());
        } catch (Exception e) {
            log.error("上传失败", e);
            return AjaxResult.error(e.getLocalizedMessage());
        }
        return AjaxResult.success(resultMap);
    }


    @PostMapping("/common/uploadObs")
    public AjaxResult uploadObs(MultipartFile multipartFile) throws Exception {
        String uploadFileUrl = "";
        File tempFile;
        try {
            // 文件后缀
            String suffix = "."+FileUploadUtils.getExtension(multipartFile);
            // 临时文件
            tempFile = File.createTempFile("tmp", suffix);
            multipartFile.transferTo(tempFile);
            uploadFileUrl =  HwObsUtil.uploadFile(tempFile);
            tempFile.deleteOnExit();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, String> resultMap = new HashMap<>(2);
        resultMap.put("url", uploadFileUrl);
        return AjaxResult.success(resultMap);
    }


    /**
     * 本地资源通用下载
     */
    @GetMapping("/common/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        try {
            if (!FileUtils.checkAllowDownload(resource)) {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 " , resource));
            }
            // 本地资源路径
            String localPath = AppConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        } catch (Exception e) {
            log.error("下载文件失败" , e);
        }
    }

    /**
     * 通用省市区接口
     * @param code
     * @return
     */
    @GetMapping("/common/getCityList")
    public AjaxResult getCityList(@RequestParam("code") String code){
        List<SysCity> sysCityList;
        if (StringUtils.isBlank(code)) {
            LambdaQueryWrapper<SysCity> queryWrapper = new QueryWrapper<SysCity>().lambda()
                    .eq(SysCity::getDeleteFlag, 0)
                    .eq(SysCity::getLevel, CityLevelEnum.province)
                    .orderByAsc(SysCity::getId);
            sysCityList = sysCityService.list(queryWrapper);
        } else {
            LambdaQueryWrapper<SysCity> queryWrapper = new QueryWrapper<SysCity>().lambda()
                    .eq(SysCity::getPid, code)
                    .eq(SysCity::getDeleteFlag, 0)
                    .orderByAsc(SysCity::getId);
            sysCityList = sysCityService.list(queryWrapper);
        }
        return AjaxResult.success(sysCityList);
    }

}
